lstat_cache(): print a warning if doing ping-pong between cache types

diff --git a/run-command.h b/run-command.h
index 0211e1d471d37a41f77098e8fff8a031fb26cb71..15e870a65eb037cd49d1e01251711915da06d260 100644 (file)
--- a/run-command.h
+++ b/run-command.h
@@ -10,6 +10,7 @@ enum {
        ERR_RUN_COMMAND_WAITPID_SIGNAL,
        ERR_RUN_COMMAND_WAITPID_NOEXIT,
 };
+#define IS_RUN_COMMAND_ERR(x) ((x) <= -ERR_RUN_COMMAND_FORK)
 
 struct child_process {
        const char **argv;